Defensive publication

ABSTRACT

MONOAZO DYES OF THE FORMULA   R-N=N-R&#39;&#39;-N SO2   WHEREIN R IS A 2-THIAZOLYL, A 2-BENZOTHIAZOLYL, A 1,3,4THIADIAZOL-2-YL, 1,2,4-THIADIAZOL-2-YL, A 3-PYRAZOLYL OR A 2-THIENYL RADICAL AND R&#39;&#39; IS A P-PHENYLENE RADICAL WHICH DYES ARE USEFUL IN DYEING HYDROPHOBIC TEXTILE MATERIALS TO GIVE YELLOW TO BLUE DYEINGS HAVING GOOD LIGHT, WASHING, GAS AND SUBLIMATION FASTNESS PROPERTIES.

EFENSTVE PUBLTCATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 O.G. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Office makes no assertion as to the novelty of the disclosed subject matter.

PUBLISHED NOVEMBER 30, 1971 892 O.G. 160 i T892,021 MONOAZO COMPOUNDS CONTAINING A TI-IIO- MORPHOLINEDIOXIDE GROUP AND MATE- RIALS DYED THEREWITH Max A. Weaver and David J. Wallace, both of PD. 130:: 511, Kingsport, Tenn. 37662 Continuation of application Ser. No. 721,094, Apr. 12, 1968. This application Mar. 5, 1970, Ser. No. 17,010 Int. Cl. C09b 29/36, 62/82; D06p 1/04 U.S. Cl. 8-41 C No Drawing. 22 Pages Specification Monoazo dyes of the formula wherein R is a Z-thiazolyl, a Z-benzothiazolyl, a 1,3,4- thiadiazol-Z-yl, a 1,2,4-thiadiazol-2-y1, a 3-pyrazolyl or a Z-thienyl radical and R is a p-phenyiene radical which dyes are useful in dyeing hydrophobic textile materials to give yellow to blue dyeings having good light, washing, gas and sublimation fastness properties. 

